Datasheet > 127102-HMC856LC5

127102-HMC856LC5

更新时间： 2022-09-29 19:11:10

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EVAL BOARD HMC856LC5

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127102-HMC856LC5 数据手册

28 Gbps, 5-Bit, Digital Time Delay with

Programmable Output Voltage

Data Sheet

HMC856

FEATURES

FUNCTIONAL BLOCK DIAGRAM

Differential and single-ended operation

Supports data rates up to 28 Gbps

Fast rise/fall time: 20 ps/18 ps

Low power consumption: 610 mW typical

Programmable differential

Output voltage swing: 500 mV p-p to 1350 mV p-p

Single supply: −3.3 V

5 mm × 5 mm, 32-terminal ceramic leadless chip carrier (LCC)

package: 25 mm²

GND

I+

24 GND

23 O+

HMC856

50Ω

DELAY

I–

22 O–

GND

B0+

B0–

21 GND

20 GND

19 B4+

18 B4–

17 NC

600Ω

APPLICATIONS

SONET OC-192

600Ω 600Ω

600Ω

High speed serial logic

Clock and data recovery

Broadband test and measurement equipment

Frequency synthesis

PACKAGE

BASE

Matched timing

Figure 1.

GENERAL DESCRIPTION

The HMC856 is a wideband time delay device with a 5-bit

digital control designed for timing compensation or clock skew

management applications. The time delay provides nearly

100 ps (maximum) of delay range with 3 ps resolution and

supports 28 Gbps data. The monotonic delay is compensated

for stable operation over both power supply and temperature

variation.

outputs are source terminated to 50 Ω and can also be ac or dc-

coupled. Connect outputs directly to a 50 Ω ground terminated

system or drive devices with CML logic input. The control lines,

B4 to B0, are differential CML inputs terminated with 600 Ω to

the positive rail, which supports lower power control options.

The HMC856 features an output level control pin, VR, that

allows loss compensation or signal level optimization. The

HMC856 operates from a single −3.3 V supply and is available

in a 5 mm × 5 mm LCC package.

All differential inputs to the HMC856 are current mode logic

(CML) and terminated on chip with 50 Ω to the positive supply

ground, GND, and can be ac or dc-coupled. The differential CML

Rev. D

Document Feedback

Information furnished by Analog Devices is believed to be accurate and reliable. However, no

responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other

rights of third parties that may result from its use. Specifications subject to change without notice. No

license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Trademarks and registeredtrademarks arethe property of their respective owners.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781.329.4700

Technical Support

www.analog.com

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